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annotate engine/core/util/structures/point.h @ 504:0196c83c7270

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One quick update to the map file. The last cannonspread5 powerup wasn't correctly identified.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Tue, 18 May 2010 16:01:35 +0000
parents 90005975cdbb
children 291ba2946c73
rev   line source
0
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
0
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 #ifndef FIFE_VIDEO_POINT_H
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23 #define FIFE_VIDEO_POINT_H
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24
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25 // Standard C++ library includes
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26 #include <iostream>
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27 #include <cassert>
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28
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29 // Platform specific includes
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30
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31 // 3rd party library includes
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32
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33 // FIFE includes
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34 // These includes are split up in two parts, separated by one empty line
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35 // First block: files included from the FIFE root src directory
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36 // Second block: files included from the same folder
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37 #include "util/base/fife_stdint.h"
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38 #include "util/math/fife_math.h"
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39
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40 namespace FIFE {
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41
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42 /** A 2D Point
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43 *
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44 * This is a small helper class to aid in 2d vector arithmetics.
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45 * @see Rect
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46 */
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47 template <typename T> class PointType2D {
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48 public:
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49 union {
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50 T val[2];
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51 struct {
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52 T x,y;
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53 };
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54 };
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55
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56 /** Constructor
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57 *
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58 * Creates a with 0 as default values.
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59 */
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60 explicit PointType2D(T _x = 0, T _y = 0): x(_x), y(_y) {
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61 }
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62
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63 /** Vector addition
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64 */
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65 PointType2D<T> operator+(const PointType2D<T>& p) const {
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66 return PointType2D<T>(x + p.x, y + p.y);
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67 }
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68
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69 /** Vector substraction
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70 */
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71 PointType2D<T> operator-(const PointType2D<T>& p) const {
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72 return PointType2D<T>(x - p.x, y - p.y);
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73 }
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74
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75 /** Vector inplace addition
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76 */
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77 PointType2D<T>& operator+=(const PointType2D<T>& p) {
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78 x += p.x;
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79 y += p.y;
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80 return *this;
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81 }
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82
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83 /** Vector inplace substraction
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84 */
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85 PointType2D<T>& operator-=(const PointType2D<T>& p) {
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86 x -= p.x;
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87 y -= p.y;
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88 return *this;
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89 }
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90
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91 /** Scalar multiplication with an integer value
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92 */
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93 PointType2D<T> operator*(const T& i) const {
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94 return PointType2D<T>(x * i, y * i);
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95 }
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96
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97 /** Scalar division with an integer value
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98 */
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99 PointType2D<T> operator/(const T& i) const {
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100 return PointType2D<T>(x / i, y / i);
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101 }
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102
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103 /** Equality comparision
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104 */
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105 bool operator==(const PointType2D<T>& p) const {
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106 return x == p.x && y == p.y;
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107 }
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108
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109 /** Equality comparision
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110 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
111 bool operator!=(const PointType2D<T>& p) const {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
112 return !(x == p.x && y == p.y);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
113 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
114
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
115 /** Return length
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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116 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
117 T length() const {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
118 double sq;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
119 sq = x*x + y*y;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
120 return static_cast<T>(sqrt(sq));
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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121 }
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122
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
123 inline T& operator[] (int ind) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
124 assert(ind > -1 && ind < 2);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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125 return val[ind];
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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126 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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127 };
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128
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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129 /** Print coords of the Point to a stream
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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130 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
131 template<typename T>
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
132 std::ostream& operator<<(std::ostream& os, const PointType2D<T>& p) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
133 return os << "(" << p.x << ":" << p.y << ")";
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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134 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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135
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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136 typedef PointType2D<int> Point;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
137 typedef PointType2D<double> DoublePoint;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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138
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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139 /** A 3D Point
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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140 *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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141 * This is a small helper class to aid in 3d vector arithmetics.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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142 * @see Rect
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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143 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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144 template <typename T> class PointType3D {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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145 public:
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
146 union {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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147 T val[3];
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
148 struct {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
149 T x,y,z;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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150 };
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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151 };
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152
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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153 /** Constructor
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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154 *
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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155 * Creates a with 0 as default values.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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156 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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157 explicit PointType3D(T _x = 0, T _y = 0, T _z = 0): x(_x), y(_y), z(_z) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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158 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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159
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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160 /** Vector addition
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
161 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
162 PointType3D<T> operator+(const PointType3D<T>& p) const {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
163 return PointType3D<T>(x + p.x, y + p.y, z + p.z);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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164 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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165
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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166 /** Vector substraction
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
167 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
168 PointType3D<T> operator-(const PointType3D<T>& p) const {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
169 return PointType3D<T>(x - p.x, y - p.y, z - p.z);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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170 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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171
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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172 /** Vector inplace addition
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
173 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
174 PointType3D<T>& operator+=(const PointType3D<T>& p) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
175 x += p.x;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
176 y += p.y;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
177 z += p.z;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
178 return *this;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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179 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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180
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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181 /** Vector inplace substraction
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
182 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
183 PointType3D<T>& operator-=(const PointType3D<T>& p) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
184 x -= p.x;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
185 y -= p.y;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
186 z -= p.z;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
187 return *this;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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188 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
189
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
190 /** Scalar multiplication with an integer value
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
191 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
192 PointType3D<T> operator*(const T& i) const {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
193 return PointType3D<T>(x * i, y * i, z * i);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
194 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
195
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
196 /** Scalar division with an integer value
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
197 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
198 PointType3D<T> operator/(const T& i) const {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
199 return PointType3D<T>(x / i, y / i, z / i);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
200 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
201
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
202 /** Equality comparision
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
203 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
204 bool operator==(const PointType3D<T>& p) const {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
205 return x == p.x && y == p.y && z == p.z;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
206 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
207
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
208 /** Equality comparision
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
209 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
210 bool operator!=(const PointType3D<T>& p) const {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
211 return !(x == p.x && y == p.y && z == p.z);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
212 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
213
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
214 /** Return length
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
215 */
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
216 T length() const {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
217 double sq;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
218 sq = x*x + y*y + z*z;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
219 return static_cast<T>(sqrt(sq));
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
220 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
221
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
222 inline T& operator[] (int ind) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
223 assert(ind > -1 && ind < 3);
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224 return val[ind];
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225 }
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226 };
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227
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228 /** Print coords of the Point to a stream
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229 */
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230 template<typename T>
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231 std::ostream& operator<<(std::ostream& os, const PointType3D<T>& p) {
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232 return os << "(" << p.x << ":" << p.y << ":" << p.z << ")";
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233 }
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234
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235 typedef PointType3D<int> Point3D;
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236 typedef PointType3D<double> DoublePoint3D;
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237
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238 /** Convert from 2D double point to 2D int point
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239 */
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240 inline Point doublePt2intPt(DoublePoint pt) {
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241 Point tmp(static_cast<int>(round(pt.x)), static_cast<int>(round(pt.y)));
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242 return tmp;
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243 }
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244
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245 /** Convert from 3D double point to 3D int point
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246 */
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247 inline Point3D doublePt2intPt(DoublePoint3D pt) {
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248 Point3D tmp(static_cast<int>(round(pt.x)), static_cast<int>(round(pt.y)), static_cast<int>(round(pt.z)));
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249 return tmp;
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250 }
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251
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252 /** Convert from 2D int point to 2D double point
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253 */
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254 inline DoublePoint intPt2doublePt(Point pt) {
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255 DoublePoint tmp(static_cast<double>(pt.x), static_cast<double>(pt.y));
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256 return tmp;
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257 }
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258
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259 /** Convert from 3D int point to 3D double point
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260 */
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261 inline DoublePoint3D intPt2doublePt(Point3D pt) {
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262 DoublePoint3D tmp(static_cast<double>(pt.x), static_cast<double>(pt.y), static_cast<double>(pt.z));
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263 return tmp;
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264 }
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265
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266 }
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267
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268 #endif